128018884827 has 8 divisors (see below), whose sum is σ = 172852503040. Its totient is φ = 84265594920.

The previous prime is 128018884751. The next prime is 128018884831. The reversal of 128018884827 is 728488810821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128018884827 - 2²² = 128014690523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128018884027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270081799 + ... + 270082272.

It is an arithmetic number, because the mean of its divisors is an integer number (21606562880).

Almost surely, 2^128018884827 is an apocalyptic number.

128018884827 is a deficient number, since it is larger than the sum of its proper divisors (44833618213).

128018884827 is an equidigital number, since it uses as much as digits as its factorization.

128018884827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540164153.

The product of its (nonzero) digits is 3670016, while the sum is 57.

The spelling of 128018884827 in words is "one hundred twenty-eight billion, eighteen million, eight hundred eighty-four thousand, eight hundred twenty-seven".